JP6625141B2 - refrigerator - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a refrigerator having an air passage that draws air into a main body and blows air to the outside.

  2. Description of the Related Art A conventional refrigerator includes an air inlet at a lower portion of a front surface of a main body, and an air inlet and an air outlet at a bottom plate of the main body (for example, see Patent Document 1). Further, there is an apparatus in which an air intake port is provided in a lower part of a front surface and a bottom plate of a main body, and an air discharge port is provided in a machine room cover on a rear surface of the main body (for example, see Patent Document 2).

JP 2003-56970 A JP-A-7-294095

  In Patent Literatures 1 and 2, the space between the bottom plate and the floor of the main body is narrow, a pressure loss occurs when air is blown out, and the amount of air flowing inside the main body decreases. As a result, there is a problem that the heat radiation capability inside the machine room is reduced.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a refrigerator that can reduce a pressure loss generated when air is blown out and can suppress a decrease in an air volume of air flowing inside a main body.

The refrigerator according to the present invention has a machine room accommodating a compressor, has a main body having a bottom discharge port formed in a bottom plate of the machine room, and a blower fan that discharges air from the bottom discharge port. The bottom discharge port is formed in a convex portion, and the convex portion is formed in a columnar shape having side walls on all side surfaces .

  According to the refrigerator of the present invention, the bottom plate has a convex portion protruding inward of the main body, and the bottom discharge port is formed in the convex portion, so that a space is formed between the bottom discharge port and the floor surface. As a result, pressure loss caused by resistance at the time of blowing air can be reduced, so that air can easily flow inside the main body. As a result, the amount of air flowing inside the main body is increased, and the heat radiation ability inside the machine room is improved.

FIG. 2 is a perspective view illustrating the entire refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a rear view of the refrigerator according to Embodiment 1 of the present invention. It is a figure which shows the machine room inside of the refrigerator in Embodiment 1 of this invention. It is a figure which shows the refrigerating cycle of the refrigerator in Embodiment 1 of this invention. It is a machine room top view of the refrigerator in Embodiment 1 of this invention. FIG. 6 is a sectional view taken along line AA of FIG. 5. It is a machine room top view of the refrigerator in Embodiment 2 of this invention. FIG. 8 is a sectional view taken along line BB of FIG. 7. It is a machine room top view of the refrigerator in Embodiment 3 of this invention. FIG. 10 is a sectional view taken along line CC of FIG. 9.

[Embodiment 1]
FIG. 1 is a perspective view showing the entire refrigerator according to Embodiment 1 of the present invention. As shown in FIG. 1, the refrigerator 100 has a refrigerator room 2, a vegetable room 3, and a freezer room 4 in a main body 1, and a machine room 5 is formed behind the lowermost storage room. You. The layout of each storage room is not limited to that shown in FIG. For example, in the example shown in FIG. 1, the freezing compartment 4 is arranged at the bottom, but the vegetable compartment 3 may be arranged at the bottom. Further, the main body 1 may be provided with a storage room such as an ice making room or a switching room.

  FIG. 2 is a rear view of the refrigerator according to Embodiment 1 of the present invention. As shown in FIG. 2, the main body 1 has a machine room cover 6 so as to cover a machine room 5 at a lower rear portion. An air inlet 15 is formed on one side of the machine chamber cover 6 in the X-axis direction, and a rear outlet 16 is formed on the other side of the X-axis direction alongside the air inlet 15 in the X-axis direction. The air inlet 15 or the rear outlet 16 of the machine room cover 6 is formed by a plurality of rear slits 23, respectively. The positions of the air inlet 15 and the rear outlet 16 may be reversed depending on the position of the equipment installed in the machine room 5.

  FIG. 3 is a diagram showing the interior of the machine room of the refrigerator according to Embodiment 1 of the present invention. As shown in FIG. 3, an evaporating dish 12 for evaporating the defrost water of the cooler and a blower fan 13 are arranged on the bottom plate 7 in the machine room 5, and the compressor 9 is mounted on the vibration isolator. It is arranged via rubber 14.

  FIG. 4 is a diagram showing a refrigeration cycle of the refrigerator according to the first embodiment of the present invention. As shown in FIG. 4, as components of the refrigeration cycle 25, a compressor 9, a discharge pipe 10, a condenser pipe 21, a capillary tube 19, a cooler 20, and a suction pipe 11 are arranged in the order in which the refrigerant flows. In addition, a defrost water discharge guide 22 that guides defrost water to the evaporating dish 12 is provided below the cooler 20, and the discharge pipe 10 passes through the inside of the evaporating dish 12. Defrost water generated by melting of the frost attached to the cooler 20 is stored in the evaporating dish 12 by the defrost water discharge guide 22.

  FIG. 5 is a machine room plan view of the refrigerator according to Embodiment 1 of the present invention. The arrows shown in FIG. 5 indicate the flow of air. On the downstream side of the air of the compressor 9, a rear outlet 16 is formed in the machine chamber cover 6, and a bottom outlet 17 having a plurality of bottom slits 24 in the bottom plate 7 on the front side (upper side in the Y-axis direction) of the main body. Is formed. Note that the arrangement and orientation of each device installed on the bottom plate 7 are not limited to those shown in the drawings. For example, even if the installation positions of the evaporating dish 12 and the blower fan 13 are reversed. Good. Further, the bottom slits 24 are arranged in one row in the Y-axis direction, but may be arranged in the X-axis direction or in a plurality of rows.

  FIG. 6 is a sectional view taken along line AA of FIG. As shown in FIG. 6, the bottom plate 7 has a convex portion 26 protruding toward the inside of the main body, and forms a bottom discharge port 17. That is, when the bottom plate 7 is viewed as a horizontal plane, it has a convex portion. The convex portion 26 has a truncated pyramid shape, but may have a truncated cone shape, a truncated hemisphere shape, a columnar shape, a prismatic shape, or the like.

  Next, the operation of the main body 1 will be described with reference to FIGS. In the refrigeration cycle 25 of FIG. 4, the refrigerant becomes high temperature and high pressure by being compressed by the compressor 9. The refrigerant discharged from the compressor 9 is mainly radiated by the discharge pipe 10 and the condenser pipe 21, and expands when passing through the capillary tube 19 to be at a low temperature and a low pressure. The refrigerant exchanges heat with the air in the cooler 20 to increase the temperature of the refrigerant, thereby cooling the air around the cooler. Thereafter, the refrigerant passes through the suction pipe 11 and returns to the compressor 9. When the refrigeration cycle 25 operates as described above, the temperature of the entire machine room 5 rises mainly because the compressor 9 and the discharge pipe 10 have high temperatures. Therefore, the cooling of the machine room 5 is performed by the blower fan 13.

  Air is taken into the machine room 5 from the air inlet 15 by the blower fan 13 as shown in FIG. The introduced air passes through the evaporating dish 12 and is sent out to the compressor 9 by the blower fan 13. The air flowing around the compressor 9 is supplied to the rear outlet 16 or the bottom plate formed in the machine room cover 6. 7 is discharged out of the machine chamber 5 from the bottom discharge port 17 formed in the bottom 7.

  In the refrigerator according to the first embodiment of the present invention that operates as described above, the bottom plate 7 has the protruding portion 26 protruding toward the inside of the main body, and a space is provided between the bottom discharge port 17 and the floor surface. By providing such a space, pressure loss caused by resistance at the time of blowing air can be reduced, so that air easily flows through the machine room. As a result, the amount of air flowing inside the machine room increases, and the heat radiation capability improves.

  The air flowing around the compressor 9 can cool the compressor 9. Further, the evaporation of the defrost water stored in the evaporating dish 12 can be promoted by increasing the air volume of the air flowing inside the main body. Further, it is possible to prevent the water that has entered the bottom plate 7 from leaking outside from the bottom discharge port 17.

[Embodiment 2]
FIG. 7 is a machine room plan view of a refrigerator according to Embodiment 2 of the present invention. In FIG. 7, parts having the same configurations as those of the refrigerators of FIGS. In the refrigerator according to the first embodiment of the present invention, the bottom plate 7 forms one bottom discharge port 17 having a plurality of bottom slits 24. However, in the refrigerator according to the second embodiment of the present invention, the bottom plate 7 A plurality of bottom discharge ports 17 having one bottom slit 124 are formed.

  The arrows shown in FIG. 7 indicate the flow of air. On the downstream side of the air of the compressor 9, a rear outlet 16 is formed in the machine chamber cover 6, and a plurality of bottom outlets having one bottom slit 124 in the bottom plate 7 on the front side (upper side in the Y-axis direction) of the main body. An outlet 117 is formed. In addition, the arrangement and orientation of each device installed on the bottom plate 7 are not limited to those described in the drawings. For example, in FIG. 7, the bottom discharge ports 117 are arranged in the Y-axis direction. However, they may be arranged in the X-axis direction. Further, the bottom discharge ports 117 may be arranged in a plurality of rows.

  FIG. 8 is a sectional view taken along line BB of FIG. As shown in FIG. 8, the bottom plate 7 has a convex portion 126 protruding toward the inside of the main body, and forms a plurality of bottom discharge ports 117. That is, when the bottom plate 7 is viewed as a horizontal plane, it has a plurality of convex portions. The protrusion 126 has a truncated pyramid shape, but may have a truncated cone shape, a truncated hemisphere shape, a columnar shape, a prismatic shape, or the like.

  As described above, the refrigerator according to Embodiment 2 of the present invention is provided with a plurality of bottom discharge ports 17 having convex portions 126 protruding inward of the main body, and a space is provided between bottom discharge ports 17 and the floor surface. . By providing such a space, pressure loss caused by resistance at the time of blowing air can be reduced, so that air easily flows through the machine room. As a result, the amount of air flowing inside the machine room increases, and the heat radiation capability improves.

  The air flowing around the compressor 9 can cool the compressor 9. Further, the evaporation of the defrost water stored in the evaporating dish 12 can be promoted by increasing the air volume of the air flowing inside the main body. Further, it is possible to prevent the water that has entered the bottom plate 7 from leaking outside from the bottom discharge port 17.

[Embodiment 3]
Next, a refrigerator according to Embodiment 3 of the present invention will be described. FIG. 9 is a machine room plan view of a refrigerator according to Embodiment 3 of the present invention. In FIG. 9, portions having the same configuration as the refrigerator of FIGS. FIG. 10 is a sectional view taken along line CC of FIG. Rollers 8 used to move the main body 1 back and forth (Y-axis direction) are attached to two holes on the bottom plate 7, and there is a gap between the bottom plate 7 so that the rollers 8 can rotate. As shown in FIGS. 9 and 10, the bottom plate 7 has a series of roller-side protrusions 18 protruding toward the inside of the main body so as to surround the periphery of the roller 8.

  With the provision of the roller-side protrusions 18, even if water infiltrates the bottom plate 7, water will not flow into the gap provided between the rollers 8 and the bottom plate 7 until the height of the roller-side protrusions 18 is exceeded. Never reach.

  As described above, in the refrigerator according to the third embodiment of the present invention, when dew water or water leaking from the evaporating dish enters the bottom plate 7, water is provided between the roller 8 and the bottom plate 7. Leakage from the gap to the outside can be prevented.

  Note that the embodiment of the present invention is not limited to Embodiments 1 to 3, and various changes can be made. For example, the bottom discharge port 17 is provided in a slit shape, but may be a hole. Although the bottom discharge port 17 is provided on the front side of the main body 1, it may be provided on the back side. Further, the heights of the convex portions 26 of the bottom plate 7 and the roller-side convex portions 18 are appropriately determined.

  1 body, 2 refrigeration room, 3 vegetable room, 4 freezer room, 5 machine room, 6 machine room cover, 7 bottom plate, 8 roller, 9 compressor, 10 discharge pipe, 11 suction pipe, 12 evaporating dish, 13 blower fan, 14 Anti-vibration rubber, 15 Air inlet, 16 Rear outlet, 17 Bottom outlet, 18 Roller convex, 19 Capillary tube, 20 Cooler, 21 Condenser pipe, 22 Defrosting water discharge guide, 23 Rear slit , 24 bottom slit, 25 refrigeration cycle, 26 convex, 100 refrigerator, 117 bottom outlet, 124 bottom slit, 126 convex.

Claims (5)

It has a machine room that houses the compressor,
A main body having a bottom discharge port formed in a bottom plate of the machine room,
A blower fan that discharges air from the bottom discharge port,
It said bottom plate has the convex portion protruding body inside direction, said bottom discharge opening is formed in the convex portion,
The protrusion is
A refrigerator formed in a column shape with side walls on all sides . The rear of the body, located on one side surface, an air inlet for sucking the air for blowing to the compressor, located on the other side surface side is provided a rear portion discharge port for discharging the air, Has been
The refrigerator according to claim 1, wherein the protrusion is provided on the other side surface and the front side of the compressor. In the bottom plate,
In the direction in which the air flowing inside the machine room flows,
The refrigerator according to claim 2, wherein an evaporating dish for evaporating defrost water is arranged between the air suction port, the convex part, and the rear part discharge port. The refrigerator according to any one of claims 1 to 3 , wherein the projection has a truncated pyramid shape. The apparatus further includes a roller provided on the bottom plate and moving the main body,
The refrigerator according to any one of claims 1 to 4 , wherein the bottom plate has a roller-side protrusion protruding inside the main body so as to surround the periphery of the roller.

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